Caring for a film-finished floor
A film finish protects the wood by covering it. That works well — right up until the film wears through. Everything below is about keeping that from happening, because once wear reaches the wood the fix is a full refinish.
Everyday cleaning
You're protecting a coating here, so grit and standing water are the two things to stay ahead of.
- Sweep or vacuum often, with a soft brush head. No beater bar — it scuffs the film.
- Mats at every outside door. Sand tracked in from a Maine driveway is the main thing grinding the finish down.
- Felt pads under all furniture, replaced when they get gritty or compacted.
- Damp mop with a cleaner made for polyurethane floors. Spray lightly, wipe, don't flood.
- Wipe spills right away. Water sitting at a seam gets under the film, and once it's under there the coating lifts.
What to use, what to never use
Fine
- A hardwood floor cleaner made for polyurethane finishes
- A microfiber pad, damp not wet
- A soft cloth on spills
Never
- Steam mops. Forces moisture through the film at the seams and cooks the finish.
- Vinegar. Etches and dulls the coating over time.
- Oil soaps. Leave a film that clouds the finish and has to be stripped.
- Wax, polish, or "restore the shine" products. See below — these are the expensive mistake.
- Wet mopping or any bucket-and-string arrangement.
Shine products cost you the cheap repair
The bottles that promise to restore a dull floor work by leaving a soft acrylic or wax layer on top. It looks good for a season.
The problem shows up later. A buff-and-coat — sanding the surface lightly and adding a fresh coat of finish — is the affordable way to renew a poly floor, and a new coat will not bond over that residue. So the floor has to be stripped first, or fully sanded, and a small job becomes a large one.
If a poly floor looks dull, it usually needs a recoat, not a polish.
When to recoat
The whole game is catching it while the wear is still in the finish and hasn't reached the wood.
- Watch the traffic lanes — hallways, in front of the sink, the path to the back door. When those lanes look dull while the edges of the room still have sheen, the finish is thinning there.
- Recoat at that point, not later. A buff-and-coat is a one-day job and a fraction of the cost of refinishing.
- Once you see bare or greyed wood, or dark stains at the traffic lanes, the film is through and it's a full sand-and-refinish. Same for water damage that's gone under the coating.
Unlike an oil finish, a poly floor can't be spot-repaired — a patch of new coating won't blend. That's the trade-off for the tougher surface, and it's why the timing on a recoat is worth paying attention to.
Thinking about changing finishes?
If your floor is due for a full refinish anyway, that's the moment to decide whether to stay with poly or go to an oil finish. Once the floor is sanded to bare wood, either is on the table, and there's no cost to switching at that point.
We're happy to walk you through the difference for your particular floor — how it's used, whether there are dogs, how much daylight it gets. Get in touch and we'll take a look.
Need supplies?
We keep the right cleaner, oil, and felt pads on hand for the floors we finish. Text Travis what you need and he'll sort you out — no account, no shipping account, no minimum.